Design Of Grid-connected Scheme For Yinyang Ecological Photovoltaic Power Station

Renewable energy is related to the national economy and national strategy,of which photovoltaic power generation project after years of development,has gradually from independent systems to large-scale grid-oriented direction.This paper mainly aims at the plan and design of Yinyang ecological photovoltaic power station project,and forms a more systematic grid connection scheme.Combined with the actual situation of the project and the status quo of the power grid,from the power flow calculation,energy loss and other aspects of economic and technical comprehensive comparison to determine the optimal access plan.Through the electrical calculation for verification,focusing on the grid after the harmonics,voltage deviation,voltage fluctuation and other power quality indicators for analysis and testing.According to the selected grid-connected program,to carry out access system electrical design.According to determine the relevant electrical equipment parameters and configuration,a clear photovoltaic power plant communication and dispatch automation program,and investment estimates.In this paper,the related technical requirements of the power system are clarified in the relevant aspects of the design scheme,and the influence on the grid stability and other aspects after the grid connection is taken into account,so as to ensure the feasibility of the grid connection scheme,finally able to achieve safe and stable operation of photovoltaic power station and the power syste m after grid connected.